Search Within


Applied Filters:
Showing 1-30 of 48 results for "05-944" within Papers
Regulatory monoubiquitination of phosphoenolpyruvate carboxylase in germinating castor oil seeds.
Uhrig, RG; She, YM; Leach, CA; Plaxton, WC
The Journal of Biological Chemistry null
Amanda Martín-Barranco et al.
Plant physiology, 184(3), 1236-1250 (2020-09-03)
In plants, iron uptake from the soil is tightly regulated to ensure optimal growth and development. Iron absorption in Arabidopsis root epidermal cells requires the IRT1 transporter that also allows the entry of certain non-iron metals, such as Zn, Mn
Yogitha Thattikota et al.
Molecular cell, 69(4), 664-676 (2018-02-18)
The morphological transformation of amorphous chromatin into distinct chromosomes is a hallmark of mitosis. To achieve this, chromatin must be compacted and remodeled by a ring-shaped enzyme complex known as condensin. However, the mechanistic basis underpinning condensin's role in chromosome
Guillermo Baena et al.
Plants (Basel, Switzerland), 10(1) (2020-12-31)
Phosphoenolpyruvate carboxylase (PEPC) is an enzyme with key roles in carbon and nitrogen metabolisms. The mechanisms that control enzyme stability and turnover are not well known. This paper investigates the degradation of PEPC via selective autophagy, including the role of
Seda Koyuncu et al.
Nature, 596(7871), 285-290 (2021-07-30)
Ageing is driven by a loss of cellular integrity1. Given the major role of ubiquitin modifications in cell function2, here we assess the link between ubiquitination and ageing by quantifying whole-proteome ubiquitin signatures in Caenorhabditis elegans. We find a remodelling
Helin Wang et al.
Scientific reports, 11(1), 14253-14253 (2021-07-11)
SIRT6 is an NAD+-dependent deacetylase that plays an important role in mitosis fidelity and genome stability. In the present study, we found that SIRT6 overexpression leads to mitosis defects and aneuploidy. We identified SIRT6 as a novel substrate of anaphase-promoting
Vivek Reddy Palicharla et al.
FEBS letters, 595(4), 491-506 (2021-01-10)
HECT-E3 ligases play an essential role in catalyzing the transfer of ubiquitin to protein substrates. The noncatalytic roles of HECT-E3 ligases in cells are unknown. Here, we report that a HECT-E3 ligase, HACE1, functions as an adaptor independent of its
Osmotic stress changes the expression and subcellular localization of the Batten disease protein CLN3.
Getty, A; Kovacs, AD; Lengyel-Nelson, T; Cardillo, A; Hof, C; Chan, CH; Pearce, DA
Testing null
M Hochstrasser
Annual review of genetics, 30, 405-439 (1996-01-01)
A growing number of cellular regulatory mechanisms are being linked to protein modification by the polypeptide ubiquitin. These include key transitions in the cell cycle, class I antigen processing, signal transduction pathways, and receptor-mediated endocytosis. In most, but not all
Juan Tang et al.
The Journal of experimental medicine, 217(4) (2020-01-31)
Aberrant NLRP3 inflammasome activation contributes to the development of endotoxemia. The importance of negative regulation of NLRP3 inflammasomes remains poorly understood. Here, we show that the E3 ubiquitin ligase Cbl-b is essential for preventing endotoxemia induced by a sub-lethal dose
The ubiquitin system for protein degradation and some of its roles in the control of the cell division cycle.
Hershko, A
Cell Death and Differentiation, 12, 1191-1197 (2005)
Regulating the regulators: control of protein ubiquitination and ubiquitin-like modifications by extracellular stimuli.
Gao, Min and Karin, Michael
Molecular Cell, 19, 581-593 (2005)
Thomas Hermanns et al.
Nature communications, 13(1), 401-401 (2022-01-22)
Eukaryotic deubiquitinases are important regulators of ubiquitin signaling and can be subdivided into several structurally distinct classes. The ZUFSP family, with ZUP1 as its sole human member, has a modular architecture with a core catalytic domain highly active against the
Prashant Monian et al.
The Journal of biological chemistry, 291(5), 2379-2388 (2015-12-17)
A signature event during the cell intrinsic apoptotic pathway is mitochondrial outer membrane permeabilization, leading to formation of the apoptosome, a caspase activation complex. The cellular apoptosis susceptibility protein (CAS) can facilitate apoptosome assembly by stimulating nucleotide exchange on Apaf-1
Xiaoli Wang et al.
The Journal of cell biology, 187(5), 655-668 (2009-12-03)
Ubiquitin (Ub) modification of proteins plays a prominent role in the regulation of multiple cell processes, including endoplasmic reticulum-associated degradation (ERAD). Until recently, ubiquitination of substrates was thought to occur only via isopeptide bonds, typically to lysine residues. Several recent
Sara Martins et al.
Nature communications, 6, 6151-6151 (2015-01-22)
Brassinosteroids are plant steroid hormones that control many aspects of plant growth and development, and are perceived at the cell surface by the plasma membrane-localized receptor kinase BRI1. Here we show that BRI1 is post-translationally modified by K63 polyubiquitin chains
Guillaume Dubeaux et al.
Molecular cell, 69(6), 953-964 (2018-03-17)
Plant roots forage the soil for iron, the concentration of which can be dramatically lower than those needed for growth. Soil iron uptake uses the broad metal spectrum IRT1 transporter that also transports zinc, manganese, cobalt, and cadmium. Sophisticated iron-dependent
Min-Kyung Sung et al.
eLife, 5 (2016-08-24)
Overproduced yeast ribosomal protein (RP) Rpl26 fails to assemble into ribosomes and is degraded in the nucleus/nucleolus by a ubiquitin-proteasome system quality control pathway comprising the E2 enzymes Ubc4/Ubc5 and the ubiquitin ligase Tom1. tom1 cells show reduced ubiquitination of
André Franz et al.
Cell reports, 37(2), 109819-109819 (2021-10-14)
The AAA+ ATPase VCP regulates the extraction of SUMO and ubiquitin-modified DNA replication factors from chromatin. We have previously described that active DNA synthesis is associated with a SUMO-high/ubiquitin-low environment governed by the deubiquitylase USP7. Here, we unveil a functional
Ruyi Wang et al.
Genome biology, 23(1), 154-154 (2022-07-13)
Ubiquitination is essential for many cellular processes in eukaryotes, including 26S proteasome-dependent protein degradation, cell cycle progression, transcriptional regulation, and signal transduction. Although numerous ubiquitinated proteins have been empirically identified, their cognate ubiquitin E3 ligases remain largely unknown. Here, we
Thang Van Nguyen et al.
Proceedings of the National Academy of Sciences of the United States of America, 114(14), 3565-3571 (2017-03-23)
Glutamine synthetase (GS) plays an essential role in metabolism by catalyzing the synthesis of glutamine from glutamate and ammonia. Our recent study showed that CRBN, a direct protein target for the teratogenic and antitumor activities of immunomodulatory drugs such as
Brendan O'Leary et al.
Journal of experimental botany, 62(15), 5485-5495 (2011-08-16)
This study employs transcript profiling together with immunoblotting and co-immunopurification to assess the tissue-specific expression, protein:protein interactions, and post-translational modifications (PTMs) of plant- and bacterial-type phosphoenolpyruvate carboxylase (PEPC) isozymes (PTPC and BTPC, respectively) in the castor plant, Ricinus communis. Previous
A Sparks et al.
Oncogene, 33(38), 4685-4696 (2013-10-15)
p53 and its major E3 ligase Mdm2 are both ubiquitinated and targeted to the proteasome for degradation. Despite the importance of this in regulating the p53 pathway, little is known about the mechanisms of proteasomal recognition of ubiquitinated p53 and
In vivo monoubiquitination of anaplerotic phosphoenolpyruvate carboxylase occurs at Lys624 in germinating sorghum seeds.
Ruiz-Ballesta, I; Feria, AB; Ni, H; She, YM; Plaxton, WC; Echevarria, C
Journal of Experimental Botany null
The ubiquitin-proteasome pathway and its role in cancer.
Mani, Aparna and Gelmann, Edward P
Journal of clinical oncology : official journal of the American Society of Clinical Oncology, 23, 4776-4789 (2005)
DongHyuk Lee et al.
Nature communications, 11(1), 1838-1838 (2020-04-17)
Production of reactive oxygen species (ROS) is critical for successful activation of immune responses against pathogen infection. The plant NADPH oxidase RBOHD is a primary player in ROS production during innate immunity. However, how RBOHD is negatively regulated remains elusive.
Jiyong Liang et al.
Nature communications, 6, 7926-7926 (2015-08-15)
AMP-activated protein kinase (AMPK) plays a central role in cellular energy sensing and bioenergetics. However, the role of AMPK in surveillance of mitochondrial damage and induction of mitophagy remains unclear. We demonstrate herein that AMPK is required for efficient mitophagy.
Narmadha Reddy Gangula et al.
The Journal of biological chemistry, 292(34), 13947-13958 (2017-07-12)
Kinetochores link chromosomes to spindle microtubules and are essential for accurate chromosome segregation during cell division. Kinetochores assemble at the centromeric region of chromosomes as a multiprotein complex. However, the molecular mechanisms of kinetochore assembly have not yet been fully
Michael W Shane et al.
Plant physiology, 161(4), 1634-1644 (2013-02-15)
Accumulating evidence indicates important functions for phosphoenolpyruvate (PEP) carboxylase (PEPC) in inorganic phosphate (Pi)-starved plants. This includes controlling the production of organic acid anions (malate, citrate) that are excreted in copious amounts by proteoid roots of nonmycorrhizal species such as
Indumathi Patta et al.
Nucleic acids research, 48(11), 5873-5890 (2020-05-12)
The chromatin organizer SATB1 is highly enriched in thymocytes and is essential for T-cell development. Although SATB1 regulates a large number of genes important for T-cell development, the mechanism(s) regulating expression of SATB1 during this process remain elusive. Using chromatin
Page 1 of 2